Question

Geeta thinks of a number and subtract 1/2 from it. she multiplies the result by 10. the result now obtained is 9 times the same number she though of.what is the number?​

Answer 1

Answer:

x = 5

Step-by-step explanation:

let no. she thought is x

Therefore,

(x-1/2)×10=9x

(2x/2-1/2)×10=9x

(2x-1/2)×10=9x

20x-10/2=9x

20x-10=2×9x

20x-10=18x

20x-18x=10

2x=10

x=10/2

x=5

Answer 2

Answer

Let number = x

- 1/2:

x - 1/2 = (2x - 1)/2

× 10:

(2x - 1)/2 × 10 = 10x - 5

Result = 9x

=> 10x - 5 = 9x

=> x = 5